Error message "Connection [6454d5c1-145f-4e06-905d-10ac494a3524] is invalid or you do not have access to it"

No, Integration Services is not for a connection to your folder. It is , for example, to use Drive, and you create a connection in Integration Service, for using Drive (you select Drive). Then, your robot user should also have access to the folder where you add your process. You should, first, pucblish your process, then add it in your folder.
Is it clear now?
Ruxandra

yes, i got it . I have access to it but then also the same error coming.